Merging multiple Rows

I have a table structure as follows
Student(Id,First_Name, Last_Name, email, Contact, Address1,Address2,City,Edit_Date,Create_Date,Archived)
Now if there is more than one row with same email the one with the latest edit date should be updated with missing fields by using same field value other rows (if the field is present in more than one row, the one with the next latest edit date is to be considered) and the archived status of all rows with same email except this master row must be set to 1.
The Create_Date must be set to the minimum of all the create_date values of rows with same email value
Please let me know how to get the desired result
Thanks

You'd be better off reading https://en.wikipedia.org/wiki/Database_normalization first.
Regards
Etbin

Similar Messages

Merging multiple rows in to a single row (when rows meet merging criteria)

Hi
I have a scenario to merge multiple rows in to a single rows when the data in those rows fall in merge criteria .Below is how my data is
Now the merging logic for the above rows is , we need to combine multiple rows in to a single row when the data in those rows permits us to do in that way. Simply saying , its like sandwich where we combine multiple things to a single piece.The output for
the above rows should be
Here we combined Row 1 ,2, 3 in to a single row as the data in those rows permits to merge in to single row. But the row 4 cannot be combined to any of those rows because the data in those rows doesn't permits us do a merge ( As the value of the column
JobSource for the row 4 is different from the other rows ) .
My original data has 56 columns , but for readability i kept only 9 columns.
can you please throw some idea on how to achieve this scenario. I know we need to use CTE for achieving this, but i am not able succeed in doing an iteration on multiple rows.
Appreciate your response .

Thanks for your reply .
Rule for merging is simple . First of all there is no unique row identifier for each row , the fact table is not having an identity column in the database . I called row 1 , row 2 etc in my post above only to make better explanation of my scenario.
The rule for merge is below.
1) we can combine only when the data in a column for one row is null & the data in same column for the other row is not null . It should also satisfy the condition where the data in other columns should conflict each other.
2) Data for all columns for the merging rows should not be conflicting (i.e. we should not merge the rows when the data in a column is not equal to the same column in the other row
,considering not null value)
Steps in merging the above source data :
1) Consider the case of row 1 and row 2 in the source, we can combine these rows as the data is satisfying the rule 1 for columns (Jobsource,Flight, Package,Update,Iscancelled
,Result, Severity) and columns (JobID and RuleName ) fall under rule 2. we merge these two rows in to a single row and keep in that in the table.
2) Then the resulting row is again merged with the second row which is present above by applying the rule 1 and rule 2 . Below would be output of merge operation.
Now there would be only two rows in the output . But these rows cannot be merged as the data doesn't satisfy the merge rules 2 . As Jobsource for the row 1 in the above output is "PresubmissionSource" which is not equal
to "PostSubmission" jobSource which is in row 2. So these two rows are left unmerged .So the above two rows would be the output of merge operation on my source data.
This process has to be repeated for all the rows in the table. As of now my table as 92 Million rows with 56 columns which need to be considered for merging rows. I replicated my scenario in 9 columns and 4 rows to understand better.

Merge multiple rows of same ID into Single row

Hi All,
I need the requirements of merging multiple rows of same ID as single row.
My Table Data:
ID     Language1 Language2 Language3 Language4
1001 NULL         JAPANESE NULL          NULL
1001 SPANISH   NULL          NULL          NULL
1001 NULL        NULL           NULL         ENGLISH
1001 NULL        NULL           RUSSIAN    NULL
Required Output Should be,
ID     Language1 Language2 Language3 Language4
1001 SPANISH    JAPANESE RUSSIAN   ENGLISH
Please help me to achieve this output.
Tried grouping but its not working also producing the same result.
Thanks.
Live freee....Joy forever................ :)

Try the below:
create Table Test_Sample(ID int,Language1 varchar(50), Language2 varchar(50), Language3 varchar(50), Language4 varchar(50))
Insert into Test_SAmple Values(1001,NULL,'JAPANESE', NULL, NULL),
(1001,'SPANISH', NULL, NULL, NULL),
(1001,NULL, NULL, NULL, 'ENGLISH'),
(1001,NULL, NULL, 'RUSSIAN', NULL)
Select ID,MAX(Language1),MAX(Language2),MAX(Language3),MAX(Language4)
From Test_Sample
Group by ID
Drop table Test_Sample

Merge multiple rows into single row (but multiple columns)

How to merge multiple rows into single row (but multiple columns) efficiently.
For example
IDVal IDDesc IdNum Id_Information_Type Attribute_1 Attribute_2 Attribute_3 Attribute_4 Attribute_5
23 asdc 1 Location USA NM ABQ Four Seasons 87106
23 asdc 1 Stats 2300 91.7 8.2 85432
23 asdc 1 Audit 1996 June 17 1200
65 affc 2 Location USA TX AUS Hilton 92305
65 affc 2 Stats 5510 42.7 46 9999
65 affc 2 Audit 1996 July 172 1100
where different attributes mean different thing for each Information_type.
For example for Information_Type=Location
Attribute_1 means Country
Attribute_2 means State and so on.
For example for Information_Type=Stats
Attribute_1 means Population
Attribute_2 means American Ethnicity percentage and so on.
I want to create a view that shows like below:
IDVal IDDesc IDNum Country State City Hotel ZipCode Population American% Other% Area Audit Year AuditMonth Audit Type AuditTime
23 asdc 1 USA NM ABQ FourSeasons 87106 2300 91.7 46 85432 1996 June 17 1200
65 affc 2 USA TX AUS Hilton 92305 5510 42.7 46 9999 1996 July 172 1100
Thanks

Hi,
That's called Pivoting . The forum FAQ has a section on this subject: {message:id=9360005}
I hope this answers your question.
If not, post your best attempt, along with a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and also post the results you want from that data. (You did post the results you wanted, but they're very hard to read because they're not formatted. Use \ tags, as described in the forum FAQ, below.)
Explain, using specific examples, how you get the results you want from the data given.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0). This is always important, but especially so with pivots.
See the forum FAQ {message:id=9360002}

ADF - Merge multiple row

Hi,
I would like to know if i can update (merge) multiple line at once.
typical situation : i have a master(form)-detail(table) page, i can modify one field in the detail table for each row
i've made a "merge" button which update one row in db ( using mergeStudent(Student) databinding command
i use the binding data of selected row to do this and it work very well. ( currentRow.dataprovider )
now what the best ( and easier) solution to update ( merge ) every row of this table
i've thought that i can create a "mergeStudents(list<Students>" function in my Ejb but i don't know if there s a binding object which send the full list
Thanks and sorry for my english.

Select C1,C2, C3,C4,C5 FROM
(SELECT C1,C2,Max(C3) Over() as C3,C4,C5 FROM yourtable) t
WHERE C4<>'0'

Merging multiple rows into a string without loop

Hi,
Wanted to know if there is a way we can merge the result set for a query(single column) into a string ?
For example, I have the following query which returns multiple rows:
SELECT organization_code
FROM mtl_parameters
WHERE oganization_id IN ( 1,2,3)
Lets say the result set for this is :
A
B
C
I want the data as A,B,C
Basically I will be fetching the organization_ID from a diff sub query. I know I can do it using for loop and keep appending the values.
But wanted to know if there is any easier way of doing it.

Try this
SELECT ''||SUBSTR (SYS_CONNECT_BY_PATH (organization_code , ','), 2)||'' csv
      FROM (SELECT organization_code
, ROW_NUMBER () OVER (ORDER BY organization_code
) rn,
                   COUNT (*) OVER () cnt
              FROM mtl_parameters
WHERE oganization_id IN ( 1,2,3)
     WHERE rn = cnt
START WITH rn = 1
CONNECT BY rn = PRIOR rn + 1;

Oracle query - Merging multiple rows into a single row output

Hi All,
I have to have a multiple row output to be converted into a single row output.My current output looks as follows:
ID YR INC_CODE OFFN SCHOOLNO
8006 2002 00175 SC03 12
8006 2002 00175 DC06 12
8006 2002 00175 DC03 12
8006 2002 00175 DC02 12
ID,INCIDENT CODE,OFFENSE are all Primary keys
So I need the output as follows:(IN ONE ROW)
ID YR INC_CODE OFFN1 OFFN2 OFFN3 OFFN4 SCHOOLNO
8006 2002 00175 SC03 DC06 DC03 DC02 12
Can you help me on this since have been spinning the wheel and this has to be a query since will have couple of tables join to produce a materialized view.
Thanks in advance

Hi Nigel,
Thanks for the reply I tested out the portion having the decode and I get the output as follows:
ID YR INC_CODE OFFN1 OFFN2 OFFN3 OFFN4 OFFN5
8982 2002 2175 DOC01 -----------------------
8982 2002 2175 DOC02-------------------
8982 2002 2175 DOC03------------
8982 2002 2175 DOC06-------
8982 2002 2175 SCV03
There is no value as max for OFFN and each INC_CODE MAY HAVE UP TO A MAX OF 5 OFFN.My query is as follows:
select distinct STU_STUDENT_ID, INC_BEG_SCH_YR,INC_INCIDENT_CODE
, decode(rank() over (partition by INC_CODE order by OFFN),1,OFFN,null) as offn1
, decode(rank() over (partition by INC_CODE order by OFFN),2,OFFN,null) as offn2
, decode(rank() over (partition by INC_CODE order by OFFN),3,OFFN,null) as offn3
, decode(rank() over (partition by INC_CODE order by OFFN),4,OFFN,null) as offn4
, decode(rank() over (partition by INC_CODE order by OFFN),5,OFFN,null) as offn5
from stu_offn where
stu_offn.ID = '8982' and stu_offn.INC_CODE = '2175'
(****Where clause is just given to just check a value)
So as you know I need to just have all the OFFN in a single row ie as follows:
ID YR INC_CODE OFFN1 OFFN2 OFFN3 OFFN4 OFFN5
8982 2002 2175 DOC01 DOC02 DOC03 DOC06 SCV03
Can you just give me a step by step procedure to go through this and the table in this case is just 'STU_OFFN'
Thanks for the earlier reply appreciate it!
****Sending this again to show the exact way the output is coming

Merging Multiple Rows into a single Row

I've read a number of posts with no real good answers or answers that might be good for tables with 3 columns of data. I have a table with 33 columns that will all need to be combined. A little history. Apparently in production the Primary Key Constraint
was dropped which allowed some duplicate data into the table. Now they want me to squish the records together to fix it.
Sorry I couldn't include the screen shot of the data, MSDN says my account isn't verified...
My requirements when I'm putting them together, CERElibilityID is a unique column. This is a sticky problem because in the related tables it is only one of the parent records gets child records related to it.
I just want to keep the one that has the child records in CERPrepActivity table. If there are no child records then the rule will be like all the other records with data.
If a field is null and another record has data we take the record that has data.
If multiple records have data we take the record that has the highest "ModifiedOn" timestamp column value.
I feel like I'm asking a lot, but I'm in a bit of a bind and I've spent the morning Googling and have come up with nothing
Thank you for any help the community can provide and the more specific you can be the better. I'm not a DBA or SQL guru by any stretch so I'm way out of my element.
Thanks

Using the systables, you can get information about your table. I put these together:
SELECT '
LEFT OUTER JOIN #CEREligibility ['+c.name+']
ON s.caseID = ['+c.name+'].caseID
AND s.modifiedOn = ['+c.name+'].modifiedOn
AND ['+c.name+'].['+c.name+'] = (SELECT TOP 1 ['+c.name+'] FROM #CEREligibility WHERE caseID = s.caseID AND ['+c.name+'] IS NOT NULL ORDER BY ModifiedOn)
AND ['+c.name+'].['+c.name+'] IS NOT NULL'
FROM tempdb.sys.objects o
INNER JOIN tempdb.sys.columns c
ON o.object_id = c.object_id
AND o.name LIKE '#CEREligibility%'
SELECT '['+c.name+'].['+c.name+'] AS ['+c.name+'], '
FROM tempdb.sys.objects o
INNER JOIN tempdb.sys.columns c
ON o.object_id = c.object_id
AND o.name LIKE '#CEREligibility%'
On my test system I created your table as a temp table named #CEREligibility.
The first of these two queries generates LEFT OUT JOIN SQL for a self join. Because we're using the columns systable, a LOJ for each column is generated.
The second, produces a select list.
Putting the two together like so, and adding a FROM and GROUP BY gives us:
SELECT
MAX([CEREligibilityId].[CEREligibilityId]) AS [CEREligibilityId], s.[CaseId], MAX([M2Eligibility].[M2Eligibility]) AS [M2Eligibility], MAX([CDREligibility].[CDREligibility]) AS [CDREligibility], MAX([M2Comments].[M2Comments]) AS [M2Comments], MAX([M2CommentsRtf].[M2CommentsRtf]) AS [M2CommentsRtf], MAX([CDRComments].[CDRComments]) AS [CDRComments], MAX([CDRCommentsRtf].[CDRCommentsRtf]) AS [CDRCommentsRtf], MAX([RIAWA].[RIAWA]) AS [RIAWA], MAX([RIAWADate].[RIAWADate]) AS [RIAWADate], MAX([EducationAndTraining].[EducationAndTraining]) AS [EducationAndTraining], MAX([EducationAndTrainingDate].[EducationAndTrainingDate]) AS [EducationAndTrainingDate], MAX([Internship].[Internship]) AS [Internship], MAX([InternshipDate].[InternshipDate]) AS [InternshipDate], MAX([Apprenticeship].[Apprenticeship]) AS [Apprenticeship], MAX([ApprenticeshipDate].[ApprenticeshipDate]) AS [ApprenticeshipDate], MAX([Entrepreneurship].[Entrepreneurship]) AS [Entrepreneurship], MAX([EntrepreneurshipDate].[EntrepreneurshipDate]) AS [EntrepreneurshipDate], MAX([EmploymentPrep].[EmploymentPrep]) AS [EmploymentPrep], MAX([EmploymentPrepDate].[EmploymentPrepDate]) AS [EmploymentPrepDate], MAX([OTPrep].[OTPrep]) AS [OTPrep], MAX([OTPrepDate].[OTPrepDate]) AS [OTPrepDate], MAX([ExitInterview].[ExitInterview]) AS [ExitInterview], MAX([ExitInterviewDate].[ExitInterviewDate]) AS [ExitInterviewDate], MAX([CreatedOn].[CreatedOn]) AS [CreatedOn], MAX([CreatedBy].[CreatedBy]) AS [CreatedBy], MAX([ModifiedOn].[ModifiedOn]) AS [ModifiedOn], MAX([ModifiedBy].[ModifiedBy]) AS [ModifiedBy], MAX([BCPermInEligibility].[BCPermInEligibility]) AS [BCPermInEligibility], MAX([CCPermInEligibility].[CCPermInEligibility]) AS [CCPermInEligibility], MAX([M2EligibilityDate].[M2EligibilityDate]) AS [M2EligibilityDate], MAX([CDREligibilityDate].[CDREligibilityDate]) AS [CDREligibilityDate], MAX([ExitSeparationCode].[ExitSeparationCode]) AS [ExitSeparationCode], MAX([ExitSeparationSubCode].[ExitSeparationSubCode]) AS [ExitSeparationSubCode]
FROM #CEREligibility s
LEFT OUTER JOIN #CEREligibility [CEREligibilityId]
ON s.caseID = [CEREligibilityId].caseID
AND s.modifiedOn = [CEREligibilityId].modifiedOn
AND [CEREligibilityId].[CEREligibilityId] = (SELECT TOP 1 [CEREligibilityId] FROM #CEREligibility WHERE caseID = s.caseID AND [CEREligibilityId] IS NOT NULL ORDER BY ModifiedOn)
AND [CEREligibilityId].[CEREligibilityId] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [CaseId]
ON s.caseID = [CaseId].caseID
AND s.modifiedOn = [CaseId].modifiedOn
AND [CaseId].[CaseId] = (SELECT TOP 1 [CaseId] FROM #CEREligibility WHERE caseID = s.caseID AND [CaseId] IS NOT NULL ORDER BY ModifiedOn)
AND [CaseId].[CaseId] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [M2Eligibility]
ON s.caseID = [M2Eligibility].caseID
AND s.modifiedOn = [M2Eligibility].modifiedOn
AND [M2Eligibility].[M2Eligibility] = (SELECT TOP 1 [M2Eligibility] FROM #CEREligibility WHERE caseID = s.caseID AND [M2Eligibility] IS NOT NULL ORDER BY ModifiedOn)
AND [M2Eligibility].[M2Eligibility] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [CDREligibility]
ON s.caseID = [CDREligibility].caseID
AND s.modifiedOn = [CDREligibility].modifiedOn
AND [CDREligibility].[CDREligibility] = (SELECT TOP 1 [CDREligibility] FROM #CEREligibility WHERE caseID = s.caseID AND [CDREligibility] IS NOT NULL ORDER BY ModifiedOn)
AND [CDREligibility].[CDREligibility] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [M2Comments]
ON s.caseID = [M2Comments].caseID
AND s.modifiedOn = [M2Comments].modifiedOn
AND [M2Comments].[M2Comments] = (SELECT TOP 1 [M2Comments] FROM #CEREligibility WHERE caseID = s.caseID AND [M2Comments] IS NOT NULL ORDER BY ModifiedOn)
AND [M2Comments].[M2Comments] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [M2CommentsRtf]
ON s.caseID = [M2CommentsRtf].caseID
AND s.modifiedOn = [M2CommentsRtf].modifiedOn
AND [M2CommentsRtf].[M2CommentsRtf] = (SELECT TOP 1 [M2CommentsRtf] FROM #CEREligibility WHERE caseID = s.caseID AND [M2CommentsRtf] IS NOT NULL ORDER BY ModifiedOn)
AND [M2CommentsRtf].[M2CommentsRtf] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [CDRComments]
ON s.caseID = [CDRComments].caseID
AND s.modifiedOn = [CDRComments].modifiedOn
AND [CDRComments].[CDRComments] = (SELECT TOP 1 [CDRComments] FROM #CEREligibility WHERE caseID = s.caseID AND [CDRComments] IS NOT NULL ORDER BY ModifiedOn)
AND [CDRComments].[CDRComments] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [CDRCommentsRtf]
ON s.caseID = [CDRCommentsRtf].caseID
AND s.modifiedOn = [CDRCommentsRtf].modifiedOn
AND [CDRCommentsRtf].[CDRCommentsRtf] = (SELECT TOP 1 [CDRCommentsRtf] FROM #CEREligibility WHERE caseID = s.caseID AND [CDRCommentsRtf] IS NOT NULL ORDER BY ModifiedOn)
AND [CDRCommentsRtf].[CDRCommentsRtf] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [RIAWA]
ON s.caseID = [RIAWA].caseID
AND s.modifiedOn = [RIAWA].modifiedOn
AND [RIAWA].[RIAWA] = (SELECT TOP 1 [RIAWA] FROM #CEREligibility WHERE caseID = s.caseID AND [RIAWA] IS NOT NULL ORDER BY ModifiedOn)
AND [RIAWA].[RIAWA] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [RIAWADate]
ON s.caseID = [RIAWADate].caseID
AND s.modifiedOn = [RIAWADate].modifiedOn
AND [RIAWADate].[RIAWADate] = (SELECT TOP 1 [RIAWADate] FROM #CEREligibility WHERE caseID = s.caseID AND [RIAWADate] IS NOT NULL ORDER BY ModifiedOn)
AND [RIAWADate].[RIAWADate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [EducationAndTraining]
ON s.caseID = [EducationAndTraining].caseID
AND s.modifiedOn = [EducationAndTraining].modifiedOn
AND [EducationAndTraining].[EducationAndTraining] = (SELECT TOP 1 [EducationAndTraining] FROM #CEREligibility WHERE caseID = s.caseID AND [EducationAndTraining] IS NOT NULL ORDER BY ModifiedOn)
AND [EducationAndTraining].[EducationAndTraining] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [EducationAndTrainingDate]
ON s.caseID = [EducationAndTrainingDate].caseID
AND s.modifiedOn = [EducationAndTrainingDate].modifiedOn
AND [EducationAndTrainingDate].[EducationAndTrainingDate] = (SELECT TOP 1 [EducationAndTrainingDate] FROM #CEREligibility WHERE caseID = s.caseID AND [EducationAndTrainingDate] IS NOT NULL ORDER BY ModifiedOn)
AND [EducationAndTrainingDate].[EducationAndTrainingDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [Internship]
ON s.caseID = [Internship].caseID
AND s.modifiedOn = [Internship].modifiedOn
AND [Internship].[Internship] = (SELECT TOP 1 [Internship] FROM #CEREligibility WHERE caseID = s.caseID AND [Internship] IS NOT NULL ORDER BY ModifiedOn)
AND [Internship].[Internship] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [InternshipDate]
ON s.caseID = [InternshipDate].caseID
AND s.modifiedOn = [InternshipDate].modifiedOn
AND [InternshipDate].[InternshipDate] = (SELECT TOP 1 [InternshipDate] FROM #CEREligibility WHERE caseID = s.caseID AND [InternshipDate] IS NOT NULL ORDER BY ModifiedOn)
AND [InternshipDate].[InternshipDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [Apprenticeship]
ON s.caseID = [Apprenticeship].caseID
AND s.modifiedOn = [Apprenticeship].modifiedOn
AND [Apprenticeship].[Apprenticeship] = (SELECT TOP 1 [Apprenticeship] FROM #CEREligibility WHERE caseID = s.caseID AND [Apprenticeship] IS NOT NULL ORDER BY ModifiedOn)
AND [Apprenticeship].[Apprenticeship] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [ApprenticeshipDate]
ON s.caseID = [ApprenticeshipDate].caseID
AND s.modifiedOn = [ApprenticeshipDate].modifiedOn
AND [ApprenticeshipDate].[ApprenticeshipDate] = (SELECT TOP 1 [ApprenticeshipDate] FROM #CEREligibility WHERE caseID = s.caseID AND [ApprenticeshipDate] IS NOT NULL ORDER BY ModifiedOn)
AND [ApprenticeshipDate].[ApprenticeshipDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [Entrepreneurship]
ON s.caseID = [Entrepreneurship].caseID
AND s.modifiedOn = [Entrepreneurship].modifiedOn
AND [Entrepreneurship].[Entrepreneurship] = (SELECT TOP 1 [Entrepreneurship] FROM #CEREligibility WHERE caseID = s.caseID AND [Entrepreneurship] IS NOT NULL ORDER BY ModifiedOn)
AND [Entrepreneurship].[Entrepreneurship] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [EntrepreneurshipDate]
ON s.caseID = [EntrepreneurshipDate].caseID
AND s.modifiedOn = [EntrepreneurshipDate].modifiedOn
AND [EntrepreneurshipDate].[EntrepreneurshipDate] = (SELECT TOP 1 [EntrepreneurshipDate] FROM #CEREligibility WHERE caseID = s.caseID AND [EntrepreneurshipDate] IS NOT NULL ORDER BY ModifiedOn)
AND [EntrepreneurshipDate].[EntrepreneurshipDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [EmploymentPrep]
ON s.caseID = [EmploymentPrep].caseID
AND s.modifiedOn = [EmploymentPrep].modifiedOn
AND [EmploymentPrep].[EmploymentPrep] = (SELECT TOP 1 [EmploymentPrep] FROM #CEREligibility WHERE caseID = s.caseID AND [EmploymentPrep] IS NOT NULL ORDER BY ModifiedOn)
AND [EmploymentPrep].[EmploymentPrep] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [EmploymentPrepDate]
ON s.caseID = [EmploymentPrepDate].caseID
AND s.modifiedOn = [EmploymentPrepDate].modifiedOn
AND [EmploymentPrepDate].[EmploymentPrepDate] = (SELECT TOP 1 [EmploymentPrepDate] FROM #CEREligibility WHERE caseID = s.caseID AND [EmploymentPrepDate] IS NOT NULL ORDER BY ModifiedOn)
AND [EmploymentPrepDate].[EmploymentPrepDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [OTPrep]
ON s.caseID = [OTPrep].caseID
AND s.modifiedOn = [OTPrep].modifiedOn
AND [OTPrep].[OTPrep] = (SELECT TOP 1 [OTPrep] FROM #CEREligibility WHERE caseID = s.caseID AND [OTPrep] IS NOT NULL ORDER BY ModifiedOn)
AND [OTPrep].[OTPrep] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [OTPrepDate]
ON s.caseID = [OTPrepDate].caseID
AND s.modifiedOn = [OTPrepDate].modifiedOn
AND [OTPrepDate].[OTPrepDate] = (SELECT TOP 1 [OTPrepDate] FROM #CEREligibility WHERE caseID = s.caseID AND [OTPrepDate] IS NOT NULL ORDER BY ModifiedOn)
AND [OTPrepDate].[OTPrepDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [ExitInterview]
ON s.caseID = [ExitInterview].caseID
AND s.modifiedOn = [ExitInterview].modifiedOn
AND [ExitInterview].[ExitInterview] = (SELECT TOP 1 [ExitInterview] FROM #CEREligibility WHERE caseID = s.caseID AND [ExitInterview] IS NOT NULL ORDER BY ModifiedOn)
AND [ExitInterview].[ExitInterview] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [ExitInterviewDate]
ON s.caseID = [ExitInterviewDate].caseID
AND s.modifiedOn = [ExitInterviewDate].modifiedOn
AND [ExitInterviewDate].[ExitInterviewDate] = (SELECT TOP 1 [ExitInterviewDate] FROM #CEREligibility WHERE caseID = s.caseID AND [ExitInterviewDate] IS NOT NULL ORDER BY ModifiedOn)
AND [ExitInterviewDate].[ExitInterviewDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [CreatedOn]
ON s.caseID = [CreatedOn].caseID
AND s.modifiedOn = [CreatedOn].modifiedOn
AND [CreatedOn].[CreatedOn] = (SELECT TOP 1 [CreatedOn] FROM #CEREligibility WHERE caseID = s.caseID AND [CreatedOn] IS NOT NULL ORDER BY ModifiedOn)
AND [CreatedOn].[CreatedOn] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [CreatedBy]
ON s.caseID = [CreatedBy].caseID
AND s.modifiedOn = [CreatedBy].modifiedOn
AND [CreatedBy].[CreatedBy] = (SELECT TOP 1 [CreatedBy] FROM #CEREligibility WHERE caseID = s.caseID AND [CreatedBy] IS NOT NULL ORDER BY ModifiedOn)
AND [CreatedBy].[CreatedBy] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [ModifiedOn]
ON s.caseID = [ModifiedOn].caseID
AND s.modifiedOn = [ModifiedOn].modifiedOn
AND [ModifiedOn].[ModifiedOn] = (SELECT TOP 1 [ModifiedOn] FROM #CEREligibility WHERE caseID = s.caseID AND [ModifiedOn] IS NOT NULL ORDER BY ModifiedOn)
AND [ModifiedOn].[ModifiedOn] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [ModifiedBy]
ON s.caseID = [ModifiedBy].caseID
AND s.modifiedOn = [ModifiedBy].modifiedOn
AND [ModifiedBy].[ModifiedBy] = (SELECT TOP 1 [ModifiedBy] FROM #CEREligibility WHERE caseID = s.caseID AND [ModifiedBy] IS NOT NULL ORDER BY ModifiedOn)
AND [ModifiedBy].[ModifiedBy] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [BCPermInEligibility]
ON s.caseID = [BCPermInEligibility].caseID
AND s.modifiedOn = [BCPermInEligibility].modifiedOn
AND [BCPermInEligibility].[BCPermInEligibility] = (SELECT TOP 1 [BCPermInEligibility] FROM #CEREligibility WHERE caseID = s.caseID AND [BCPermInEligibility] IS NOT NULL ORDER BY ModifiedOn)
AND [BCPermInEligibility].[BCPermInEligibility] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [CCPermInEligibility]
ON s.caseID = [CCPermInEligibility].caseID
AND s.modifiedOn = [CCPermInEligibility].modifiedOn
AND [CCPermInEligibility].[CCPermInEligibility] = (SELECT TOP 1 [CCPermInEligibility] FROM #CEREligibility WHERE caseID = s.caseID AND [CCPermInEligibility] IS NOT NULL ORDER BY ModifiedOn)
AND [CCPermInEligibility].[CCPermInEligibility] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [M2EligibilityDate]
ON s.caseID = [M2EligibilityDate].caseID
AND s.modifiedOn = [M2EligibilityDate].modifiedOn
AND [M2EligibilityDate].[M2EligibilityDate] = (SELECT TOP 1 [M2EligibilityDate] FROM #CEREligibility WHERE caseID = s.caseID AND [M2EligibilityDate] IS NOT NULL ORDER BY ModifiedOn)
AND [M2EligibilityDate].[M2EligibilityDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [CDREligibilityDate]
ON s.caseID = [CDREligibilityDate].caseID
AND s.modifiedOn = [CDREligibilityDate].modifiedOn
AND [CDREligibilityDate].[CDREligibilityDate] = (SELECT TOP 1 [CDREligibilityDate] FROM #CEREligibility WHERE caseID = s.caseID AND [CDREligibilityDate] IS NOT NULL ORDER BY ModifiedOn)
AND [CDREligibilityDate].[CDREligibilityDate] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [ExitSeparationCode]
ON s.caseID = [ExitSeparationCode].caseID
AND s.modifiedOn = [ExitSeparationCode].modifiedOn
AND [ExitSeparationCode].[ExitSeparationCode] = (SELECT TOP 1 [ExitSeparationCode] FROM #CEREligibility WHERE caseID = s.caseID AND [ExitSeparationCode] IS NOT NULL ORDER BY ModifiedOn)
AND [ExitSeparationCode].[ExitSeparationCode] IS NOT NULL
LEFT OUTER JOIN #CEREligibility [ExitSeparationSubCode]
ON s.caseID = [ExitSeparationSubCode].caseID
AND s.modifiedOn = [ExitSeparationSubCode].modifiedOn
AND [ExitSeparationSubCode].[ExitSeparationSubCode] = (SELECT TOP 1 [ExitSeparationSubCode] FROM #CEREligibility WHERE caseID = s.caseID AND [ExitSeparationSubCode] IS NOT NULL ORDER BY ModifiedOn)
AND [ExitSeparationSubCode].[ExitSeparationSubCode] IS NOT NULL
GROUP BY s.caseID
When I ran this against your test data, It produced a single row for each of the two case ID's.
To keep performance in line, I also created a covering index on the temp table:
CREATE INDEX idx_caseID_ModifiedOn ON #CEREligibility (caseID, modifiedOn) INCLUDE ([CEREligibilityId], [M2Eligibility], [CDREligibility], [M2Comments], [M2CommentsRtf], [CDRComments], [CDRCommentsRtf], [RIAWA], [RIAWADate], [EducationAndTraining], [EducationAndTrainingDate], [Internship], [InternshipDate], [Apprenticeship], [ApprenticeshipDate], [Entrepreneurship], [EntrepreneurshipDate], [EmploymentPrep], [EmploymentPrepDate], [OTPrep], [OTPrepDate], [ExitInterview], [ExitInterviewDate], [CreatedOn], [CreatedBy], [ModifiedBy], [BCPermInEligibility], [CCPermInEligibility], [M2EligibilityDate], [CDREligibilityDate], [ExitSeparationCode], [ExitSeparationSubCode])
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Merge Multiple Rows in to a single Row.

Hi
Tab_A
Col_1
Col_2
Col_3
I want resultant rows to merge on base of Col_1 (i.e. single - delimited merge row for distinct value of Col_1)
Example
Table_A
Col_1     |     Col_2     |     Col_3
A     |     1     |     23
A     |     2     |     25
B     |     3     |     5
B     |     6     |     9
C     |     7     |     8
Required Result
Col_1     |     Col_2     |     Col_3
A     |     1-2     |     23-25
B     |     3-6     |     5-9
C     |     7     |     8
Wishes
Jawad

You can try with sys_connect_by_path, but I've found Re: Aggregate function to bring values in list form more performant.
You can write your query like this:
SELECT col_1
           , concat_all(concat_expr(col_2,'-')) col_2
           , concat_all(concat_expr(col_3,'-')) col_3
FROM   yourtableMHE

Merge multiple rows to get single row result

Hi,
Below is the sample data from my table USERINFO-
personid userid username orgid
1234 1235 TOM 1
2345 2346 HARRY 1
1111 2222 BOND     2
3333 4444 BERY 2
Now I want a query which can give me the following result-
personid userid username personid userid username orgid
1234 1235 TOM 2345 2346 HARRY     1
1111 2222 BOND     3333 4444 BERY 2
i.e., two records belonging to the same orgid should be merged into a single row resulset.
Please let me know the SQL query to get the desired result.
Thanks

SQL> select * from test_otn;
PERSONID     USERID USERNAME                  ORGID
      1234       1235 TOM                           1
      2345       2346 HARRY                         1
      1111       2222 BOND                          2
      3333       4444 BERY                          2
SQL> select max(decode(rn, 1, personid, null)) person_id1,
2        max(decode(rn, 2, personid, null)) person_id2,
3        max(decode(rn, 1, userid, null)) user_id1,
4        max(decode(rn, 2, userid, null)) user_id2,
5        max(decode(rn, 1, username, null)) username1,
6        max(decode(rn, 2, username, null)) username2,
7        orgid
8 from
9 (select row_number() over (partition by orgid order by orgid) rn,
10         personid, userid, username, orgid from test_otn)
11 group by orgid
12 /
PERSON_ID1 PERSON_ID2   USER_ID1   USER_ID2 USERNAME1            USERNAME2                 ORGID
      1234       2345       1235       2346 TOM                  HARRY                         1
      1111       3333       2222       4444 BOND                 BERY                          2
Thx,
SriDHAR

Merging multiple Rows in to one In Table.

Hi Friends,
In Our application we are maintaining one table which has 12 rows with 12 different values (All are Read only).
Based On Some condition the number of rows changes. The maximum number of rows possible with diffrent vaues is 11. but as soon as the number of rows become 12 all the values become similar. means all the values are same. so what i want is, in this condition i want to display only one row instead of 12 rows. how can i marge those 12 rows..??
Thanks & Regards
Jeetendra

I think you just need to break down the approach into two:
1) basic merging of data based on the categories you mentioned. put them in an a Collection family object and merge from there.
2) dynamic UI programming for the table
That's what I see at least. Goodluck!
Regards,
Jan

Merging multiple rows to one row

Hi,
I need a help.
I have the below table, table name is ITEM_LIST
ITEM VARCHAR2
COUNT_ITEM NUMBER
STATUS VARCHAR2
ITEM COUNT_ITEM STATUS
item1 1 in
item1 1 out
item1 2 out
item2 1 in
item2 1 in
item3 1 in
item3 1 out
And if I run,
SELECT ITEM, SUM(COUNT_ITEM), STATUS
FROM ITEM_LIST GROUP BY ITEM, STATUS
The below list is coming
ITEM SUM(COUNT_ITEM) STATUS
item1 1 in
item1 3 out
item2 2 in
item3 1 in
item3 1 out
This is the expected result but my real concern is to update the origin table(ITEM_LIST) the same as the above list.
Pleas help me.
Thank you in advance.
Message was edited by:
ginam

Instead of create ,rename and drop you can go for update, dellete
SQL> select * from item_list;
ITEM       COUNT_ITEM STATUS
item1               1 in
item1               2 out
item1               2 out
item2               2 out
item2               2 out
item3               1 out
item3               1 in
7 rows selected.
SQL> update item_list i
2 set count_item = (select sum(count_item)
3                    from item_list
4                    where item = i.item
5                    and status=i.status);
7 rows updated.
SQL> delete from item_list
2 where rowid not in (select min(rowid)
3                       from item_list
4                      group by item,status);
2 rows deleted.
SQL> select * from item_list;
ITEM       COUNT_ITEM STATUS
item1               1 in
item1               4 out
item2               4 out
item3               1 out
item3               1 in

Merging multiple rows without using max group by

Hi guys,
Is there any better way to convert
with
test as
select '001' as id, 'Apple' as name, 'A' as segment1,null as segment2,null as segment3 from dual union all
select '001' as id, 'Apple' as name,null as segment1, 'P' as segment2,null as segment3 from dual union all
select '001' as id, 'Apple' as name,null as segment1,null as segment2, 'L' as segment3 from dual
select * from test
to
select '001' as id, 'Apple' as name, 'A' as segment1,'P' as segment2,'L' as segment3 from dual
without using max and group by?
There are about 5 million records and using max group by is slowing it down by a lot.
It is needed to be done by SQL.
Thank You

with
test as
select '001' as id, 'Apple' as name, 'A' as segment1,null as segment2,null as segment3 from dual union all
select '001' as id, 'Apple' as name,null as segment1, 'P' as segment2,null as segment3 from dual union all
select '001' as id, 'Apple' as name,null as segment1,null as segment2, 'L' as segment3 from dual
select distinct id, name
, last_value(segment1 ignore nulls) over (partition by id, name order by segment1) as seg1
, last_value(segment2 ignore nulls) over (partition by id, name order by segment2) as seg2
, last_value(segment3 ignore nulls) over (partition by id, name order by segment3) as seg3
from test
;No max or group by, but not necessarily any faster. If you post your actual query, some sample data with expected results, and the additional information requested in the following posts, then someone may be able to provide better suggestions.
When your query takes too long
When your query takes too long ...
How to Post a SQL statement tuning request
HOW TO: Post a SQL statement tuning request - template posting
Regards,
Bob

Merging 2 rows into 1 row

I have a field:
=Fields!Attachment_Name.Value that returns values on 2 separate rows
Row 1 LTC 34 EARC
Row 2 LTC 34 EARC v04_13
How can I get the 2 rows to merge into 1 row to show "LTC 34 EARC" only
Thank you

How is the value coming in dataset?
Is it a single column values you're showing above as two lines or are they two separate rows? Is the question to merge multiple row data to one inside SSRS?
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Merge multiple cells and rows

Hello,
I am trying to merge multiple cells and have found that I can do thi easily by selecting the adjancent row cells and using the TABLE - MERGE CELLS command. However, If I want to apply the same merge to multiple rows, I can find noquick way to do this other than selecting each set of cells and using the TABLE - MERGE CELLS command each time. Here is an example of what I want to do:
Here is the Numbers spreadsheet as normal:
Here is cell B2 and C2 merged:
Now what I want to do is the same process for rows 3 to 10. However, when I try to select the section and use the TABLE - MERGE CELLS command, I get on large cell rather than split rows of merged cells as seen below:
Any idea how I can or if I can accomplish this task?
Thanks in advance,
OriginalGumshoe

You may also use this script :
--{code}
--[SCRIPT merge_row_by_row]
Enregistrer le script en tant que Script : merge_row_by_row.scpt
déplacer le fichier ainsi créé dans le dossier
<VolumeDeDémarrage>:Utilisateurs:<votreCompte>:Bibliothèque:Scripts:Applications :Numbers:
Il vous faudra peut-être créer le dossier Numbers et peut-être même le dossier Applications.
Sélectionner le bloc de cellules à traiter.
Aller au menu Scripts , choisir Numbers puis choisir “merge_row_by_row”
Le script fusionne les cellules de chaque ligne appartenant à la sélection.
--=====
L’aide du Finder explique:
L’Utilitaire AppleScript permet d’activer le Menu des scripts :
Ouvrez l’Utilitaire AppleScript situé dans le dossier Applications/AppleScript.
Cochez la case “Afficher le menu des scripts dans la barre de menus”.
Sous 10.6.x,
aller dans le panneau “Général” du dialogue Préférences de l’Éditeur Applescript
puis cocher la case “Afficher le menu des scripts dans la barre des menus”.
--=====
Save the script as a Script: merge_row_by_row.scpt
Move the newly created file into the folder:
<startup Volume>:Users:<yourAccount>:Library:Scripts:Applications:Numbers:
Maybe you would have to create the folder Numbers and even the folder Applications by yourself.
Select the range of cells to treat
Go to the Scripts Menu, choose Numbers, then choose “merge_row_by_row”
The script merge the cells of every row included in the selection.
--=====
The Finder’s Help explains:
To make the Script menu appear:
Open the AppleScript utility located in Applications/AppleScript.
Select the “Show Script Menu in menu bar” checkbox.
Under 10.6.x,
go to the General panel of AppleScript Editor’s Preferences dialog box
and check the “Show Script menu in menu bar” option.
--=====
Yvan KOENIG (VALLAURIS, France)
2011/12/18
--=====
on run
          local dName, sName, tName, rowNum1, colNum1, rowNum2, colNum2, r
          my activateGUIscripting()
          set {dName, sName, tName, rowNum1, colNum1, rowNum2, colNum2} to my get_SelParams()
          tell application "Numbers" to tell document dName to tell sheet sName to tell table tName
                    repeat with r from rowNum1 to rowNum2
                              set selection range to range (name of cell colNum1 of row r & " : " & name of cell colNum2 of row r)
                              my selectmenu("Numbers", 6, 23) -- Merge cells
                    end repeat
          end tell
end run
--=====
set { dName, sName, tName, rowNum1, colNum1, rowNum2, colNum2} to my get_SelParams()
tell application "Numbers" to tell document dName to tell sheet sName to tell table tName
on get_SelParams()
          local d_Name, s_Name, t_Name, row_Num1, col_Num1, row_Num2, col_Num2
          tell application "Numbers" to tell document 1
                    set d_Name to its name
                    set s_Name to ""
                    repeat with i from 1 to the count of sheets
                              tell sheet i to set maybe to the count of (tables whose selection range is not missing value)
                              if maybe is not 0 then
                                        set s_Name to name of sheet i
                                        exit repeat
                              end if -- maybe is not 0
                    end repeat
                    if s_Name is "" then
                              if my parleAnglais() then
                                        error "No sheet has a selected table embedding at least one selected cell !"
                              else
                                        error "Aucune feuille ne contient une table ayant au moins une cellule sélectionnée !"
                              end if
                    end if
                    tell sheet s_Name to tell (first table where selection range is not missing value)
                              tell selection range
                                        set {top_left, bottom_right} to {name of first cell, name of last cell}
                              end tell
                              set t_Name to its name
                              tell cell top_left to set {row_Num1, col_Num1} to {address of its row, address of its column}
                              if top_left is bottom_right then
                                        set {row_Num2, col_Num2} to {row_Num1, col_Num1}
                              else
                                        tell cell bottom_right to set {row_Num2, col_Num2} to {address of its row, address of its column}
                              end if
                    end tell -- sheet…
                    return {d_Name, s_Name, t_Name, row_Num1, col_Num1, row_Num2, col_Num2}
          end tell -- Numbers
end get_SelParams
--=====
on parleAnglais()
          local z
          try
                    tell application "Numbers" to set z to localized string "Cancel"
          on error
                    set z to "Cancel"
          end try
          return (z is not "Annuler")
end parleAnglais
--=====
on decoupe(t, d)
          local oTIDs, l
          set oTIDs to AppleScript's text item delimiters
          set AppleScript's text item delimiters to d
          set l to text items of t
          set AppleScript's text item delimiters to oTIDs
          return l
end decoupe
--=====
on activateGUIscripting()
(* to be sure than GUI scripting will be active *)
          tell application "System Events"
                    if not (UI elements enabled) then set (UI elements enabled) to true
          end tell
end activateGUIscripting
--=====
my selectMenu("Pages",5, 12)
==== Uses GUIscripting ====
on selectmenu(theApp, mt, mi)
activate application theApp
          tell application "System Events" to tell application process theApp to tell menu bar 1 to ¬
                    tell menu bar item mt to tell menu 1 to click menu item mi
end selectmenu
--=====
--[/SCRIPT]
--{code}
Yvan KOENIG (VALLAURIS, France) dimanche 18 décembre 2011 22:21:24
iMac 21”5, i7, 2.8 GHz, 12 Gbytes, 1 Tbytes, mac OS X 10.6.8 and 10.7.2
My iDisk is : <http://public.me.com/koenigyvan>
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Merging multiple Rows

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